It's a generic looking uppercut with lightning effects. So the input to pull off the move requires timing, but is there anything else to it other than that? Why is this like the most talked about move when all it is, is a boring looking uppercut?
You're judging the move based on its appearance, rather than its usefulness? Mmmkkk. (even though its appearance is awesome as well)
It's the fastest launcher in the game, has incredibly deceptive range, does great damage, puts you at frame advantage on block, and can be pulled out of almost any situation. Its one single weakness is that it can be crouched, and to a lesser extent SS'd. It's also a complicated input, signifying the player's skill (especially when you start getting into the deeper aspects of the move, such as PEWGF, dEWGF, WDEWGF, CH d/f+2 EWGF, etc.)
The move represents Tekken.
Velvet dreams. Starlight beams. Plastic freaks. On the streets. Take me home. Before I'm dead. SciFi girl. In my head.
Now, if you're looking for the coolest looking uppercut in Tekken, you've gotta try the Dragon Uppercut. This one is for when you just say "Screw functionality. I got this round. Now time to be as flashy as possible." When you think you can do it, send them flying with this move, and expect a ragequit immediately after the K.O.
Vroom Vroooom! FULL AUTO!!! http://www.gamefaqs.com/boards/652997-tekken-tag-tournament-2/63435382